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Table 4 Addition of trehalose after homogenization

From: Lyophilized Hybrid Nanostructured Lipid Carriers to Enhance the Cellular Uptake of Verapamil: Statistical Optimization and In Vitro Evaluation

Formula code

(Lipid:trehalose) ratio

Testing condition

PS (nm)

PDI

% EE

VER-9

1:0

Before lyophilization

178.34 ± 4.85

0.534 ± 0.0002

97.98 ± 0.96

After lyophilization

372.78 ± 10.81

0.733 ± 0.048

97.61 ± 0.51

1:1

After lyophilization

212.82 ± 3.83

0.544 ± 0.044

67.47 ± 1.61

1:2

329.45 ± 12.10

0.995 ± 0.007

40.68 ± 7.32

1:4

227.93 ± 3.64

0.634 ± 0.812

22.19 ± 3.25

1:6

317.94 ± 65.10

0.812 ± 0.052

9.47 ± 2.93

1:8

260.67 ± 16.35

0.611 ± 0.033

8.37 ± 2.02

VER-11

1:0

Before lyophilization

166.34 ± 3.84

0.465 ± 0.012

99.09 ± 0.29

After lyophilization

1544.18 ± 2064

1 ± 0.00

98.27 ± 0.34

1:1

After lyophilization

171.59 ± 3.69

0.558 ± 0.033

70.28 ± 0.87

1:2

210.97 ± 48.38

0.610 ± 0.041

44.88 ± 3.55

1:4

264.33 ± 13.52

0.748 ± 0.022

23.81 ± 3.17

1:6

231.9 ± 17.64

0.549 ± 0.025

9.06 ± 2.75

1:8

260.33 ± 16.30

0.506 ± 0.078

7.96 ± 2.56

VER-13

1:0

Before lyophilization

165.5 ± 4.34

0.524 ± 0.174

93.90 ± 0.77

After lyophilization

1129.41 ± 657.64

1 ± 0.00

92.77 ± 1.37

1:1

After lyophilization

261.11 ± 13.35

0.608 ± 0.025

71.53 ± 2.85

1:2

188.66 ± 9.19

0.662 ± 0.044

52.81 ± 2.50

1:4

256.45 ± 22.60

1 ± 0.00

25.19 ± 3.90

1:6

272.61 ± 34.13

0.622 ± 0.025

10.64 ± 0.82

1:8

238.02 ± 12.73

0.824 ± 0.030

8.43 ± 3.08

VER-15

1:0

Before lyophilization

174.52 ± 2.97

0.497 ± 0.012

95.87 ± 0.25

After lyophilization

1175.55 ± 1016.11

1 ± 0.00

94.90 ± 1.26

1:1

After lyophilization

232.77 ± 4.55

0.497 ± 0.069

74.95 ± 3.18

1:2

300.91 ± 21.33

0.737 ± 0.036

46.04 ± 9.01

1:4

270.42 ± 19.17

0.659 ± 0.094

27.28 ± 4.32

1:6

289.23 ± 42.33

0.824 ± 0.030

9.39 ± 2.48

1:8

208.55 ± 10.87

0.738 ± 0.022

7.78 ± 3.00

  1. PS particle size, PDI polydispersity index, EE entrapment efficiency

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